In a large mixing bowl, add in your favorite Alfredo Sauce, grate parmesan cheese, chicken broth, chopped sun-dried tomatoes, 1/2 tsp dried basil, 1/2 tsp salt and 1/4 tsp.
Add 1/4 chopped yellow onion, 3 cloves minced garlic, and 2 tbsp. Olive oil to a large frying pan. Heat at medium heat for 2 minutes, occasionally mixing.
Add the chicken breasts to the frying pan and sear the chicken breasts on each side for 3 minutes each. During the searing, cover the frying pan with a fitted lid or aluminum foil to seal in the heat.
While the chicken breasts are searing, grease the inside of your 4-quart crock pot. Then pour about 1/3 of the Alfredo mixture at the bottom of the Crock Pot.